What tools should be used to measure master cylinder piston to cylinder clearance?
What tools should be used to measure master cylinder piston-to-cylinder clearance? Use a telescoping gauge and an outside micrometer or a strip-type feeler gauge.
How big are the Pistons on a master cylinder?
Four piston calipers can usually be found with piston sizes from 1.125″ to 1.875″. The area of two pistons on one side of the caliper determine the calipers influence on clamping capability. How do we use pressure to determine brake bias?
What should the brake pedal ratio be for a master cylinder?
Armed with the following information: brake pedal ratio of 5.75:1, master cylinder bore size of 1-inch, and front caliper bore size of 2.75-inch, we can use a formula to determine if our pedal ratio is correct for the size of the master cylinder we are using.
What happens when master cylinder bore size changes?
While a change in master cylinder bore size affects a pressure change, it also changes the amount of pedal travel realized to add the additional stroke needed to displace enough fluid to move the caliper pistons.
What kind of caliper to use on master cylinder?
On our setup we are using the larger piston GM midsize calipers in the front and the smaller piston GM metric calipers in the rear.
Four piston calipers can usually be found with piston sizes from 1.125″ to 1.875″. The area of two pistons on one side of the caliper determine the calipers influence on clamping capability. How do we use pressure to determine brake bias?
How big is a disc brake master cylinder?
The factory 65-66 disc brake master cylinder is 15/16″. I tried a 1-1/8 and need 3 left feet to stop. I tried a 1″ and didnt like it. I use a 7/8″. And I have manual brakes and use Wilwood 4 piston differential bore calipers on the front and matched bore calipers on the rear.
How does master cylinder size affect pedal ratio?
So, instead of changing the brake pedal ratio we chose to change the bore size of the master cylinder to 1-1/8-inch (1.12-inch) which as an area of 0.99 in². Doing the math with this combination, 5.94 / 0.99 = 6, which equals a 6:1 pedal ratio.
While a change in master cylinder bore size affects a pressure change, it also changes the amount of pedal travel realized to add the additional stroke needed to displace enough fluid to move the caliper pistons.